Mexican shepherd's pie - Trois fois par jour

Ingredients

• 2 tablespoons butter
• 1 cup yellow onion, finely chopped
• 2 lb lean ground beef
• 2 green onions, finely chopped
• 1 clove garlic, minced
• 1 tablespoon chili powder
• 1/2 cup ketchup
• 1/4 cup relish
• 14 oz (1 can, 398 ml) creamed corn
• 19 oz (1 can, 540 ml) corn
• 1 handful fresh cilantro, to taste
• 2-3 tablespoons bread crumbs
• Salt and pepper, to taste
• 4-5 large potatoes, peeled and diced
• Some milk or cream, to taste